公开(公告)号：US20250012961A1

公开(公告)日：2025-01-09

申请号：US18747844

申请日：2024-06-19

Applicant: Applied Materials, Inc.

Inventor： Evan WANG ,  Kunal SHASTRI ,  David Alexander SELL ,  Kevin MESSER ,  Samarth BHARGAVA

IPC: F21V8/00 ,  G02B5/18

Abstract: A waveguide is disclosed. The waveguide includes one or more gratings disposed over a substrate. The gratings include grating structures having a grating pitch. The waveguide includes a waveguide region disposed over the substrate between each grating and an edge of the substrate. The waveguide region includes auxiliary structures with an auxiliary pitch less than the grating pitch.

公开(公告)号：US20250022234A1

公开(公告)日：2025-01-16

申请号：US18769595

申请日：2024-07-11

Applicant: Applied Materials, Inc.

Inventor： Evan WANG ,  David Alexander SELL ,  Kunal SHASTRI ,  Sihui HE ,  Kevin MESSER ,  Samarth BHARGAVA

IPC: G06T19/00 ,  G02B5/04 ,  G02B6/10 ,  G02B27/01

Abstract: The present disclosure relates to augmented reality devices and related methods. In one or more embodiments, an augmented reality device includes a projection system and a waveguide. The projection system includes a projector and a prism. The projector projects an image along the projectors major axis. The prism refracts the image having a first spectrum, a second spectrum, and a third spectrum. The waveguide is disposed at a wrap angle from a plane formed from the major axis of the projector. The waveguide includes an input coupler and an output coupler. The input coupler includes input structures at an input period and an input orientation and the input coupler is configured to receive the spectrums at different corresponding input angles. The output coupler includes output structures at an output period and an output orientation and the output coupler out couples the respective spectrums at an about equal output angle.

公开(公告)号：US20250046026A1

公开(公告)日：2025-02-06

申请号：US18793389

申请日：2024-08-02

Applicant: Applied Materials, Inc.

Inventor： David Alexander SELL ,  Sihui HE ,  Kevin MESSER ,  Kunal SHASTRI ,  Jinxin FU ,  Samarth BHARGAVA

IPC: G06T19/00 ,  G02B5/04 ,  G02B6/10

Abstract: The present disclosure relates to augmented reality devices and related methods. The augmented reality devices include a projection system. The projection system includes a projector including a major axis. The projected is configured to project an image along the major axis. A prism is configured to refract the image. The image includes a first spectrum, a second spectrum, and a third spectrum. A waveguide is disposed at a wrap angle from a plane formed from the major axis of the projector. The waveguide includes an input coupler, and an output coupler.

公开(公告)号：US20250012960A1

公开(公告)日：2025-01-09

申请号：US18746195

申请日：2024-06-18

Applicant: Applied Materials, Inc.

Inventor： Kunal SHASTRI ,  Evan WANG ,  Simon LORENZO ,  David Alexander SELL ,  Kevin MESSER ,  Samarth BHARGAVA

IPC: F21V8/00 ,  G02B1/11

Abstract: Embodiments of the disclosure provided herein include waveguide combiners. More specifically, embodiments described herein provide for waveguide combiners with a waveguide layer and a coating having a tapered portion disposed thereover. The waveguide includes one or more gratings, the one or more gratings including a plurality of grating structures disposed over a waveguide substrate, wherein the grating structures include a waveguide material, and the plurality of grating structures include exterior grating structures at outer edges of the one or more gratings. A waveguide layer is disposed over the waveguide substrate between the exterior grating structures and an edge of the waveguide substrate, the waveguide layer including the waveguide material, and a coating disposed over the waveguide layer, the coating having a tapered portion that is tapered from at least one of the exterior grating structures to a planar portion of the coating.

公开(公告)号：US20240361525A1

公开(公告)日：2024-10-31

申请号：US18647537

申请日：2024-04-26

Applicant: Applied Materials, Inc.

Inventor： Kunal SHASTRI ,  David Alexander SELL

IPC: G02B6/122 ,  G02B5/18 ,  G02B6/12

CPC classification number: G02B6/1228 ,  G02B5/1823 ,  G02B2006/12107

Abstract: Embodiments described provide for waveguide combiners with phase matching regions. The waveguide includes one or more gratings. The one or more gratings includes grating structures disposed over a waveguide substrate. A phase matching region is disposed over the waveguide substrate between the one or more gratings and a waveguide region. The phase matching region includes a waveguide layer having a thickness varying from a first end to a second end of the waveguide layer, or a plurality of structures having depths therebetween. The one or more of the depths are different from each other, or at least two or more structures of the plurality of structures have a first duty cycle different than a second duty cycle of the plurality of structures.